Kmobile establish in shenzhen since 2014, have rich experience to provide OEM and ODM product and service to partner based on our deep understanding on material supply chain, production quality control and solution provider on the motherboard.　　In 2019, we establish our own brand Estalky to show our confident and quality control on product ,distribute our best support for critical communication field. Estalky understand push to talk (POC) market growing and market demand. we delicated to provide professional radio or android phone which use GSM.WCDMA, LTE network to offer customers unlimited, instant national communications.　　We are not just device provider ,developer and manufacturer, our company also provide complete technical support on third party PTT apk intergration, improve the whole solution(PTT device+PTT platform+network) performance, help communicate more quickly, more securely and with more people.　　Estalky brand terminals are built tough to meet harsh working enviroments,our product have been successfully deploy in government, public security, utility, transportation, shopping mall, enterprise & business......